On top of playchar.php you can see: It is currently Day. Sunset is in 1 hours, 20 minutes (server time: 16:40 Friday)
You can see the same on play-status.php
For some reason, however, you don't see the same on top of play-news.php. I have a hunch that this was simply forgotten.
Indeed, great progress was done in this regards over the years. There's still a few pages that should really display it and still don't, though, play-news.php being number 1.
Discussed before, rejected before, at least twice.
And thank god for that. Making up week day names would create a whole lot of confusion.